1103021131443 has 16 divisors (see below), whose sum is σ = 1833593569536. Its totient is φ = 572997990240.

The previous prime is 1103021131379. The next prime is 1103021131469. The reversal of 1103021131443 is 3441311203011.

It is a happy number.

It is not a de Polignac number, because 1103021131443 - 2⁶ = 1103021131379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103021131483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2387491396 + ... + 2387491857.

It is an arithmetic number, because the mean of its divisors is an integer number (114599598096).

Almost surely, 2^{1103021131443} is an apocalyptic number.

1103021131443 is a deficient number, since it is larger than the sum of its proper divisors (730572438093).

1103021131443 is a wasteful number, since it uses less digits than its factorization.

1103021131443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774983274.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1103021131443 its reverse (3441311203011), we get a palindrome (4544332334454).

The spelling of 1103021131443 in words is "one trillion, one hundred three billion, twenty-one million, one hundred thirty-one thousand, four hundred forty-three".